213411949 has 2 divisors, whose sum is σ = 213411950. Its totient is φ = 213411948.

The previous prime is 213411937. The next prime is 213411959. The reversal of 213411949 is 949114312.

213411949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149891049 + 63520900 = 12243^2 + 7970^2 .

It is a cyclic number.

It is not a de Polignac number, because 213411949 - 2¹⁵ = 213379181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213411959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106705974 + 106705975.

It is an arithmetic number, because the mean of its divisors is an integer number (106705975).

Almost surely, 2^213411949 is an apocalyptic number.

It is an amenable number.

213411949 is a deficient number, since it is larger than the sum of its proper divisors (1).

213411949 is an equidigital number, since it uses as much as digits as its factorization.

213411949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 34.

The square root of 213411949 is about 14608.6258422892. The cubic root of 213411949 is about 597.5940214897.

The spelling of 213411949 in words is "two hundred thirteen million, four hundred eleven thousand, nine hundred forty-nine".